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Clicking any heading in the main data area (at right) will scroll the page back to this top position. Use the following links to jump to the associated section in the main data. Blunting Effect Comments Common Names Common Uses Countries of Distribution Cutting Resistance Distribution Overview Drying Defects Ease of Drying Environmental Profile Family Name Gluing Grain Heartwood Color Luster Movement in Service Nailing Natural Durability Numerical Data Odor Painting Planing Polishing References Regions of Distribution Resistance to Impregnation Sapwood Color Scientific Name Screwing Strength Properties Texture Toxicity Trade Name Tree Size Scientific Name Xanthophyllum papuanum Trade Name New Guinea Boxwood Family Name Xanthophyllaceae Common Names New Guinea Boxwood Regions of Distribution Oceania and S.E. Asia Countries of Distribution  [VIEW MAP] Australia, Malaysia, Papua New Guinea, Solomon Islands Common Uses Bedroom suites, Brush backs & handles, Building construction, Building materials, Cabin construction, Cabinetmaking, Construction, Decorative plywood, Decorative veneer, Domestic flooring, Drawer sides, Excelsior, Factory construction, Figured veneer, Flooring, Furniture , Handles, Heavy construction, Interior construction, Interior trim, Joinery, Kitchen cabinets, Living-room suites, Millwork, Mine timbers, Moldings, Office furniture, Parquet flooring, Plywood, Pulp/Paper products, Pulpwood, Radio - stereo - TV cabinets, Shafts/Handles, Sub-flooring, Tool handles, Trimming, Veneer, Wainscotting Environmental Profile Status has not been officially assessed Distribution Overview The species occurs in Papua New Guinea, Malaysia, the Solomon Islands, and Australia. Heartwood Color Purple Red Brown Yellowish brown Pale brown Sapwood Color White Pink Yellow Pale straw Grain Even Interlocked Straight Straight Interlocked Texture Coarse Medium Medium Coarse Luster Medium Natural Durability Very durable Susceptible to termite attack Susceptible to pinhole borer Susceptible to marine borer attack Susceptible to attack by fungi and termites Odor No specific smell or taste Toxicity Associated with dermatitis Drying Defects Distortion Checking Ease of Drying Fairly Easy Radial and tangential shrinkage from 4-7% Radial and tangential shrinkage from 1-2% Easy Prone to surface-check Tree Size Trunk diameter is 100-150 cm Tree height is 30-40 m Trunk diameter is 150-200 cm Comments Vessels often contain white deposits Blunting Effect Abrasive deposits are reported to dull tool edges rapidly and excessively Cutting Resistance Easy to saw Difficult to saw Dull saws tend to cause dust to pack on tools. Tungsten-tipped cutters are recommended Gluing Fairly Difficult to Very Difficult Fair to Good Results Fairly Easy to Very Easy Growth rings fairly distinct Movement in Service Excellent Stability - Small Movement Nailing Fairly Easy to Very Easy Very Good to Excellent Results Fair to Good Results Planing Requires sharp cutting edges Planes to a smooth surface Difficult to plane Causes severe and rapid blunting effect on cutting edges. Smooth surfaces can be achieved if cutters are kept very sharp. Resistance to Impregnation Sapwood is permeable Sapwood is permeable Heartwood is resistant Screwing Very Good to Excellent Results Fair to Good Results Painting Very Good to Excellent Results Fair to Good Results Polishing Very Good to Excellent Results Fair to Good Results Cut surfaces are usually smooth and glossy Strength Properties Resists denting and marring High in density Hardness = medium Compression strength (parallel to grain) = high Bending strength (MOR) = high Numerical Data Item Green Dry English Bending Strength 10682 17346 psi Density 46 lbs/ft3 Hardness 1637 lbs Maximum Crushing Strength 5429 8820 psi Shearing Strength 2136 psi Static Bending 7125 11074 psi Stiffness 1876 2323 1000 psi Toughness 145 inch-lbs Item Green Dry Metric Bending Strength 751 1219 kg/cm2 Density 737 kg/m3 Hardness 742 kg Maximum Crushing Strength 381 620 kg/cm2 Shearing Strength 150 kg/cm2 Static Bending 500 778 kg/cm2 Stiffness 131 163 1000 kg/cm2 References Bolza, E. and N.H. Kloot. 1966. The Mechanical Properties of 81 New Guinea Timbers. Division of Forest Products Technological Paper No. 41, Commonwealth Scientific and Industrial Organization, Melbourne, Australia. Eddowes, P.J. 1977. Commercial Timbers of Papua New Guinea - Their Properties and Uses. Forest Products Research Center, Office of Forests, Department of Primary Industry, Papua New Guinea. Keating, W.G., Bolza, E.,1982,Characteristics properties and uses of timbers. South East Asia, Northern,Australia and the Pacific,C.S.I.R.O. Div. Chemical Technology,Inkata Press,1